Improvement in machines for casting printers  leaps



yH. J. STONE.

MACHINES Fon CASTING PRINTERS LEADS.

,Patented Nov. 7,1876.

www NGISAANA.. 01A

Y wwf/V701?.

UNITED STATES PATENT GEEIOE.

HENRY J. sT'ONE, OE NEW HAVEN, CONNECTICUT, AssreNoE To WILLIAM QUAIL, OE BROOKLYN, NEW YOEK.

IMPRVEMENT IN MACHINES FOR CASTING PRINTERS LEADS.

Specification forming part of Letters Patent No. 184, 115, dated November 7, 1876; application led March 23, 1876.

To alt whom it may concern:

Be it known that I, HENRY J. STONE, of the city and county of New Haven, Connecticut, have invented, made, and applied to use, an Improved Machine for Casting Printers Leads, and that the following is a full, clear, and correct description of the same, reference being had to the accompanying drawings, making part of this speciiication, and to the letters of reference marked thereon, in which- Figure 1 is a side elevation of myimproved machine for casting printers leads. Fig. 2 is a plan view of the same.

In the drawing, like parts of the invention are designated by the same letters of reference. v

rlhe nature of the present invention consists in the construction, as more fully hereinafter setforth` of an improved machine for casting printers leads, and relates to a machine for such purpose, in which the leads are first cast into sheets, which are subsequently cut up into leads of the desired sizes-the object ofthe invention beingthe production of a machine for the purpose indicated, by which the casting of leads is expeditiously and economically e'ected.

To enable those skilled in the arts to make and use my invention, I will describe the same. f

A shows a base for supporting the receptacle B for the molds O in which the leads are to be cast. The base A is provided with a central opening, as at a, in which is received a pin or pivot, b, secured upon the under side of the receptacle B, so that the` receptacle B can be revolved as desired. The receptacle B consists of a circular platform, having mounted upon it, centrally, the cross-shaped piece D, between the projecting portions of which and the rockin g-standards E the molds 0 are positioned-the faces of the projecting portions ot' the cross-shaped piece D, andthe forward portions of the rocking standards E, corresponding in width to the Width of the molds used. Attached upon the sides of the cross-shaped piece D are pinned the hooked levers F, the object of which is more fully hereinafter set forth.

From the cross-shaped piece D extend the projecting strips G, let into the platform, and vforming bases upon which the molds D rest,-

and which projecting-strips G are slotted at their outer ends to receive thelower ends of the rocking standards E pinned in the same. These standards are made very nearly the height of the molds C when positioned in the receptacles, are made wider upon their face than elsewhere, are provided upon their rear sides, about midway their length, with the blocks or projecting pieces e, made sufficiently strong for the cam end of lever to work against, and also with the projecting plates e2, in which are pinned at their forward ends the cam-levers H. The moldsused are composed of strips or plates of metal grooved on one side and made true andl smooth upon the opposite side. They are provided, for convenience in handling, with the central projections c, having openings in them, and also D and the rocking standards E, and secured l therein by passing the hooked ends of the levers F over the pins e3 passed through the cam-levers H, and turning from the vertical to a horizontal, or nearly horizontalfposition, these cam-levers H, so that the cam portions ofthe same have a direct bearing upon the blocks e, and press the mold-plates sufliciently tight to prevent the metal running out between them.

Such being the construction, the operation may be thus 'set forth. The 'plates of which the molds C are composed are tirst heated to the temperature of the molten m'etalto be poured in them, either by immersing them in the molten metal, or in any convenient way, and are then inserted in the receptacle, as described, and held firmly in the same between the projecting portions of the crossshaped piece Dand the rocking standards E, the projecting bases c2 of the molds resting in the grooved strips G, the receptacle being reupon the exterior of the molds.,

`volved to facilitate the pouring et' the metal into the molds C until all the molds have been lled or charged. When the last section and set of molds are iilled, the first section or set of molds in Which the metal has been poured are sufficiently cool to be removed from the 'machine, and, if not sufficiently cool, tliecooling may be hastened by dashing'y cold Water The machine revolving, the operator does not change his position to remove the molds. When properly cooled, the cam-levers H may be relieved from pressure upon the blocks e. By turning them from the horizontal position into a vertical or nearly verticahpositiori, the hooked levers F are released from the pins e2 by throwing them up into a vertical or nearly vertical position,the rocking standards E are rocked back, and the molds C and cast-leads are removed from the receptacle B. rlhe sheets thus formed are subsequently shaved or dressed, and yare then out up into proper lengths and sizes for the eonsnmeis' use.

By the use ot'a machine thus constructed, the cost ot' printers leads is greatly reduced, and the manufacture of the same expedited.

Having nonT set forth my invention, what I claim as new islhe combination of a revolving receptacle B, supported upona base, A, of the mold O, rocking standards E, hooked levers F, and cam-levers H, constructed and operating substantially as and for the purpose specified.

HENRY J. STONE.

In presence of- GHARLEs R. WHEDON, F. M. CHAPMAN. 

